Implementing a Scaler C Compiler on the Cyber 205

With the aid of the EM (Encoding Machine) Compiler Tool Kit, a preliminary version of a scalar C compiler was implemented on the Cyber 205 ina relatively short period of time. This C compiler emphasizes functionality more than efficiency. Several benchmark programs were used to measure the performance and to compare it with an equivalent C compiler for VAXlUNIX* system. In order to make i.t a production-quality C compiler, further enhancements will be necessary. This paper presents some motivating factors, imple.mentation details, and proposes further work on developing the Cyber 205 C compiler.